Add marker to map:              help
Marker Notes X

To add your own marker to the map, click on the appropriate symbol below the map, then click again at the location required on the map (using the crosshairs).

Logged-in registered users only...
When you add a marker, a pop-up box should then appear on the map - fill in the elevation (if known) and a brief description of your marker, then click [save].

To view previously saved markers which fall within the bounds of the map, click the show link (you may need to repeat this if you zoom or pan away from the current position on the map).

Loading...
Name:Rhialgwm
Hill number:2131
Height:540m / 1772ft
RHB Section:30E: Bala to Welshpool
Nuttall/Wainwright area:The Berwyns
County/UA:Powys (CoU)
Catchment:Severn
Class:Marilyn, Hump, Dodd (500-599m), Dewey, Clem
(Ma,Hu,Tu,5,Dew,Cm)
Grid ref:SJ 05503 21179
Summit feature:ground within 2m of trig point
Drop:225m
Col:315m  SJ041216  
OS map sheet(s):(1:50k) 125
(1:25k) 239
Observations:ground 15m WSW just lower
Survey:Abney level
Change log:show changes for this hill entry
GPS data:show GPS entries for this hill

Show Map
(Please be considerate with your usage of the OS map pages, as there are daily limits)

View on: Geograph  OS Maps  Streetmap  Magic  NLS  OSM

Full screen map
Switch to Bing Maps view
(Please be considerate with your usage of the Full Screen/Bing Maps pages, as there are monthly limits)

Resize map: portrait / landscape / reset

Map Help, This page uses the Ordnance Survey OpenSpace API
which does not include Explorer (1:25000 scale) mapping.

Show/hide GPS File for mountains/markers shown

Show/hide GPX File for mountains shown

Photos
No summit photo available
Hill summit
No portrait photo available
Hill portrait

To contribute a summit or portrait photo for a hill
please contact the hillsummits website

N.B. Some hill summits are on private property or on land where there is no public right of way.  Permission should be sought from the landowner where access to a hill summit is through private land.
Please report via the contact page any logs you see below which describe or encourage acts of trespass, and mention the hill number and hill name.

Logged Descriptions  (logged by 164 users, only the latest 50 shown - Show all)ByDate of Ascent
After coffee and cake at the Vyrnwy Dam VC. As others followed forest track after the end of the yellow road from the west. Parked at junction (SJ 063210) beyond path start. Path up to top of woods ok. Then it was very overgrown across the hill to the summit. With elizzyanne. Returned same wayGmacT01/08/2019
Path deteriorates as you go up to the stage of battling through heather, bracken and tussocks.Blessed is the view of the trig point when you start to lose the will to live in the heat!. Hill number 500 for me!!!elizyanne01/08/2019
From E. Good parking at road end 095 230. With Clawdd MawrPeteN01/08/2019
As others followed forest track after the end of road..with care... parked at cattle grid beyond path start so took the open slope out of the wood with is overgrown with bracken at the upper section. Returned via the overgrown but much better path in the woods. 3/4 evening walkN.Morters10/07/2019
A proper mini-mountain, with forest, streams, and open hillside - a great reminder of why we do the Marilyns. Great views on a fine spring day. Plenty of heather too!huwthomas24/02/2019
Approach from end of yellow road to SW. When out of forest, mapped track is very overgrown, but, best to stick with it, or drown in deep bracken. Good summit views. (5km, 240m).ger25/09/2018
As Gill. Beware the gate at the top of the forest it has a broken post and falls on you when unlatched.Lionel Bidwell12/08/2018
Parked by cattle grid on forest track (driveable with care even in a T-reg Fiesta) at SJ063210, then slogged through deep snow to summit.Tony J16/12/2017
It's possible to get even a Golf (with almost no clearance) over the potholes on the forestry track and park below the footpath, at the track junction by the cattle grid. Easy, steep going up the path through the forestry, with all deadfall amenable to limbo dancing or avoidance. On the moor, there's an overgrown track almost all the way to the top, and a small path fills in the 100m gap to the trig.Gill04/12/2017
Parked in forest access track at 044189 and then along narrow road/track to end of forest. Then NW up on intermittent track to gate and across, heather bashing, to summit. Very windy, cold but reasonably clear.MichaelF23/11/2017
9/10 (Allt y Main/Galt y Goedhwch/Allt y Gader/Moel y Fronllwyd/Pen y Berth/Domen-Gastell Hill/Das Eithen/Clawd Mawr/Rhialgwm/Cilhaul)Fergalh12/08/2017
This one was hard work to say the least. The positives: found some good off road parking at SJ 04361 19919 where some dog walkers told me they regularly used. And the views from the top with the heather in flower were excellent. The negatives: my route! Walked NE up the track but when it reached the end of the pasture I cut up steeply through the wood onto the track through the middle thinking it would give me a more gentle ascent. Don't. It is overgrown and uneven. On exiting the wood onto open land I failed to find any real track but found instead boggy ground, ferns and other tricky vegetation. Very tricky walking with a tugging dog in one hand. When I let him off he's get lost in the ferns but didn't seem too bothered. Back down was easier but never found a track. Once into woods descended via the FP which would have been a far better way to go up.Father Ted12/08/2017
Laboured a bit up to this one through the long heather in the dark after having been on the go for nearly 12 hours today.Alex C24/02/2017
With Trefor. Parked on track south of summit where it begins to seriously deteriorate. Followed track until near end of forestry then up steep track. Once out of woods a faint path led almost to summitmike.hoult24/08/2016
Morning stroll with Minnie, parked at track jn 064 210, up track to jn with path up Llwybr Heulen to fenceline then up to Clawdd Mawr,top? in trees difficult to find,continued round fenceline to high point then heather bash to Rhialgwm top/trig, great views, down via vague track/sheep path then path back to jn. sunny & warm.apricorum13/04/2016
Parked at end of adopted road to Pentre-aber-marchant at junction of forestrv (SJ0523820446) Straight forward bag along forest track (ignore any unmapped left turns on first part of track) then left and round up footpath/track all the way to summit. Easy enough return as well if stick to reverse route. I took the direct route due south expecting to find a firebreak to route through forest. I did not but it was not too dense. A more fun descent but a bit too steep (hard work) for ascent.SteveSmith26/02/2016
From carpark on B4391 at Penybontfawr at SJ 08825 24544. South to Bwlch Greolen then along the ridge to the top.Alan Moore06/01/2016
With Jenx from the road end, easy access and good track through part felled woodland. Leads to gate then part old track part sheep track which lead quickly into summit. A dry day at last after 10 weeks of wet days. Lovely spot at the trig.nordicstar28/12/2015
Wow... It didn't rain! Some fallen trees on the track but all passable. A good little hill.jenx28/12/2015
Parked at 054204 and walked to cattle grid. (Those with robust cars could park here.) Ascended steeply beside the stream in the field (right of way in the forest looked like a fight) up onto the moors were a faint path lead to the trig point. Fine views on a beautiful spring evening.mindlessflogger21/03/2015
From forest track end (041214) taking tracks to CROW land on north, then up fence and over some heather (not too bad). Came back to east and round south of hill on forest tracks (lots of felling).SS06/07/2014
Parked at the end of the rough forest road from Abertridwr. With GB.bolton24/06/2014
Parked by cattle grid E. of summit (063210) Followed RoW up through forest Through gate at top of forest and then W. along track to summit. (PM)gerrybowes24/06/2014
with Jamie and got my exhaust caught by a branch on the forest track I decided to drive up, which yanked off middle section pipe of exhaust, eventually costing me about £70. Ouchvegibagger28/05/2013
From N (15:25) along bridleway on map which is now a forest road. From bend at 016256 went SSE to corner of forest - now felled - then straight up to summit. Deep heather on plateau, hard going. Cloudy but dry. Finish 16:45dbb24/05/2013
Abandoned car in snow drift on minor road to South. Followed road and then a good track up though forest to open land above.tim74716/01/2013
G MyIdris31/10/2012
from south - easy ascent in sunshine - brill viewsgigglejon12/07/2012
Lovely morning in mid Wales recording my first P150=+ of the year Rhiaigwm. Done by parking due south then using forest track to gain footpath to head for summit from the east.Dugswell225/02/2012
from near penygarnedd, along forestry tracks initially then up open pastures to heather top. some snow, some sun SOME view!!stig_nest19/02/2012
Parked at SJ 044 201 and walked North easterly up the lane before following footpath to top.heavyhorses20/12/2011
Short steep climb from the decaying road to the south. Parked at SJ 064 210 Good views at 9.15amsignyred20/06/2010
Start~ 055205. Walked further up the badly disintegrating lane and took the RoW track up through forest. The track actualy diverts off the RoW at the edge of the forest and climbs directly to the summit.steve hudson09/12/2009
Walked with SH. Parked about 1m E of B4396 along narrow lane in forest. Followed forest track NE then signposted RoW N steeply up through forest and out onto open heathland. Followed path to trig point on heather covered summit. Dry but cool breeze. Goodwombourne09/12/2009
From North. Lovely hill until the last 500m where the heather and other stuff makes hard going.destaylor12/05/2009
Nice walk along forest track to the southwest going to southeast of the mountain before climbing the marked footpath steeply. Once clear of the forest there is a 4x4 track heading roughly NW from which the trig point is clearly visible 100yds or so to theclivevilla11/04/2009
Alan, Otis,FrankGlenford30/12/2008
Track from N along forest in parts. Rough heather higher up. Trig at summit covered in millipedes!Aye Jimmy09/05/2008
A TRICKY SECTION OVER THE STREAM AND FENCE IF APPROACHING THE SUMMIT FROM THE EASTDARRENG24/03/2007
From Gwreiddiau. An exercise in forest route finding.Eddie10/06/2006
Trig revisit, nice rock/grass/heather summit, decent viewRHW01/04/2006
Parked at end of road to S. Came up through forest top heathery top via paths. Cold but sunny.robphys30/12/2004
http://tomread.co.ukm1eyp23/12/2004
Galltywenallt31/05/2003
From the road south of the summit. Through woodland and up to a path running over the ridge. Then up to the trig point summitChinnockC11/04/2003
Start at 350m on bridal track up hillside, through gate over fence to a sea of virgin heather swamp. To top at 14.45. Swirling cloud hid the view.arranc02/06/2000
Last of 6 marilyns in a dayChris Pearson13/06/1999
Date is first visit. Notes from later...700th Marilyn: shoulder-length bracken could be avoided by taking high line, v boggy at col, fine summit with gorgeous view SE. from road @ 125:068213 RHW12/09/1998
petey01/01/1990
From SJ 060 225. 2000?summitsupblank